Update dependency org.mockito:mockito-core to v5.20.0

Author: renovate[bot]

gradle/libs.versions.toml

@@ -10,7 +10,7 @@ jaxb-impl = "4.0.5"
 jetbrains-annotations = "26.0.2-1"
 junit-jupiter = "5.10.3"
 logback = "1.5.18"
-mockito = "5.19.0"
+mockito = "5.20.0"
 testcontainers = "1.21.3"
 
 [libraries]